With all the talk about performance-enhancing drug use in the Olympics, we thought we'd explore a different type of cheating: eating junk food. You read right- we're going to show you how to have the most awesome cheat day ever...and still not break your kidney diet.

Pizza is always fairly high in our Food-Grading Engine searches. So, we compared a Domino's Pepperoni Deep Dish Crust pizza to a regular Domino's Cheese Hand-Tossed Crust. The Cheese hand-tossed pizza won by a head, and it's easy to see why. It's so much lower in three of the main nutrients you need to limit with kidney disease: sodium, potassium and protein.

This makes sense if you recall the standard rules we've discussed in the past: